Plainfield is a city located in Indiana. With a 2020 population of 37,484, it is the 24th largest city in Indiana and the 1042nd largest city in the United States. Plainfield is currently growing at a rate of 4.31% annually and its population has increased by 35.66% since the most recent census, which recorded a population of 27,631 in 2010. Spanning over 26 miles, Plainfield has a population density of 1,453 people per square mile.
The average household income in Plainfield is $79,855 with a poverty rate of 8.98%. The median rental costs in recent years comes to $1,009 per month, and the median house value is $163,000. The median age in Plainfield is 38.1 years, 36.9 years for males, and 39.3 years for females. For every 100 females there are 100.8 males.